.header{
    position: fixed;
    width: 100%;
    z-index: 99999;
   
}
.left{
    position: absolute;
    top: 45px;
}
.right{
    position: absolute;
    left: 203px;
    top: 34px;
    right: 3px;
    bottom: 3px;
}
iframe{
    width: 100%;
    height: 100%;
    border: 0px;
    
}